Surgical drain tube



FIG. 1 is a perspective view of a surgical drain tube showing my new design;

FIG. 2 is an end elevational view thereof; and,

FIG. 3 is an end elevational view thereof, opposite that in FIG. 2.

FIG. 4 is a perspective view of the drain tube from the opposite side of FIG. 1. 

The ornamental design for a surgical drain tube, as shown and described. 